Common use of No Amendment to Agreement Clause in Contracts

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper : Oasis Petroleum Marketing LLC Contact: [***] Contact: [***] Phone: [***] Phone: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: [***] E-mail: [***] Gathering Fee (on Receipt Point Volume) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] $ [***] Pumpover Fee (Delivery Point) [***] $ [***] $ [***] Storage Demand Fee [***] $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper shall pay Gatherer each Month the following Fees: (i) a gathering fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; (ii) a stabilization and blending fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Stabilization and Blending Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement; (iii) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; and (iv) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (b) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the Agreement. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC Contact: [***] ContactInvoice Date: [***] Phone: [***] PhoneService Date: Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] 0000 XXXXXX, XXXXX 0000 XXXXXXX, XX 00000 Area Receipt Point Volumes (BoW) Service Date Description Volumes (BoW) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Fee [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: [***] E-mail: [***] Gathering Fee (on Receipt Point VolumeTrucking Fee(1) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) Disposal Fee: Produced Water [***] $ [***] $ [***] Pumpover Fee (Delivery Point) Flowback Water [***] $ [***] $ [***] Storage Demand Fee Excluded Water — [***] $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] — (1) Trucking fees are estimated if actual costs are not yet available and will be trued up to actual third party invoiced cost not to exceed the Gathering Fee. * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper Producer shall pay Gatherer each Month the following FeesFees for the volumes of Saltwater received by Gatherer at the Receipt Points: (i) a gathering fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) a stabilization and blending disposal fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Stabilization and Blending Disposal Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement;of: (iiiA) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; andProduced Water; (ivB) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks for Flowback Water; and (as may be increased in accordance with clause (bC) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, $[***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) per Barrel of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementExcluded Water. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper : Oasis Petroleum Marketing LLC Contact: XXX Xxxxx [***] Contact: [ ***] [***] Phone: [***] Phone: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity NGL Value $ — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Total Available [***] Regional Gas Lift — — Residue Value $ — Upstream Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: Fees $ [***] Statement Date: 8/1/2017 Phone: Net Plant Inlet [***] E[***] Net Amount Due $ [***] Product Theoretical Gallons Actual Gallons H2S XX0 X0 Methane Ethane [***] — Propane [***] [***] Iso-mail: Butane [***] [***] Normal Butane [***] [***] Iso-Gasoline [***] [***] Normal Gasoline [***] [***] C6+ [***] [***] Units Theoretical Residue Actual Residue MCF [***] [***] MMBTU [***] [***] Residue BTU Factor [***] Gathering Fee (on Receipt Point Volume) $ [***] [***] $ [***] Compression $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] Processing $ [***] Pumpover Fee (Delivery Point) [***] $ [***] Gas Lift $ [***] Storage Demand Fee [***] $ [***] Total Fees $ [***] $ Mole % GPM Theoretical Gallons Plant Recoveries Actual Gallons Shrink MMBtu Shrink Mcf Contract % Settled Gallons Net Price Liquid Value [***] Contact: [***] [***] [***] % — — — [***] % — $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] [***] [***] [***] $ — Theoretical Residue Actual Residue Fuel Lost & Unaccounted For Residue to WBI Gas Lift Settled Residue Net Price Residue Value [***] [***] [***] [***] [***] [***] [***] [***] [***] [***] $ — [***] % [***] % Name [***] Phone: # [***] E-mail: Email [***] * Individual Receipt Point allocation to be provided on a Monthly basis.. Product: Demethanized Mix – Y-Grade Date Originally Issued: 11/20/2012 Specification Number: BKNNGL-RF Revision Date: Revision Number: 0 Carbon Dioxide, Maximum GPA 2177 [***] [***] Methane, Maximum GPA 2177 [***] [***] Aromatics, Maximum GPA 2186 [***]LV% Olefins, Maximum GPA 2186 [***] [***] COS, by wt of C3 component ASTM D5623 or GPA 2199 [***] ppmw psig @ 100° F, Maximum GPA 2177, Appendix B [***] Copper Strip @ 100 F ASTM D 1838 [***] PPM by Weight, Maximum ASTM D 6667 [***] ppm Hydrogen Sulfide ASTM D 2420 [***] End Point @ 14.7 psia, °F, Max ASTM D 86 [***]° F [***] Saybolt Number, Minimum ASTM D 156 [***] [***] Free Water Inspection [***] at [***]° F Product containing 65 mole % or more Ethane, °F, Maximum [***]°F Product containing less than 65 mole % Ethane, °F, Maximum [***]°F Notes: 1. [***] 2. [***] 3. [***] 4. [***] 5. [***] (a) Shipper shall pay Gatherer each Month the following Fees: (i) a gathering fee The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point (but excluding Gas received at the Receipt Point at the Stabilizer Interconnection), less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points); (ii) a stabilization The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point and blending fee compressed at each System Compressor Station, less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Stabilization and Blending Compression Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement); (iii) a pumpover fee The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point, less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month and the volume of Gas (in Mcf) redelivered to or for Shipper’s account at an Upstream Delivery Point during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Pumpover Processing Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points); and (iv) a storage fee The product of (A) the aggregate volume of Gas (in MCF) delivered by Gatherer to Shipper or for Shipper’s account at each Gas Lift Delivery Point during such Month multiplied by (B) $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Storage Gas Lift Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the Agreement). (b) The Fees Parties agree and acknowledge that the initial design of the Facilities provides for the System Compressor Stations to utilize Gas-fueled compression equipment, rather than electric compression equipment, and that Shipper will be allocated its pro rata share of Fuel for the System Compressor Stations as provided in Section 6.3 and Section 6.4 of the Agreement. As a result, Shipper will not be initially responsible for payment or allocation of any electricity charges incurred by Gatherer. If Gatherer elects to utilize electric compression equipment to replace Gas-fueled compression equipment at the System Compressor Stations, Shipper shall escalate be responsible for its pro rata share of the electricity used at System Compressor Stations based on the total quantity of Shipper’s Gas (in MCF) delivered at the Receipt Points during such Month utilizing such electric compression during such Month as a fixed annual percentage of [***]% beginning January 1stthe total quantity of all Gas (in MCF) delivered into the Gathering System during such Month and utilizing such electric compression during such Month. The Parties acknowledge that Gatherer shall utilize some electric driven gas compression (i.e., [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing process refrigeration and/or overhead tower compression, motors) in the Contract Year beginning in [***]operation of the Processing Plant and Shipper shall not be responsible for such costs.

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC Contact: [***] ContactInvoice Date: [***] Phone: [***] PhoneService Date: Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] 0000 XXXXXX, XXXXX 0000 XXXXXXX, XX 00000 Area Service Date Description Delivery Point Volumes (barrels) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Red Bank Flushwater [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: Fracwater — — Hebron Flushwater [***] E-mail: [***] Gathering Fee (on Receipt Point Volume) [***] Fracwater — — Indian Hills South Flushwater [***] [***] [***] Fracwater — — Wild Basin Flushwater [***] [***] [***] Fracwater [***] [***] [***] TOTAL (all areas) Flushwater [***] [***] Fracwater [***] [***] Total Volumes [***] TOTAL DUE $ [***] $ [***] Stabilization and Blending Fee ] (Receipt Pt1) [***] $ [***] $ [***] Pumpover Fee (Individual Delivery Point) [***] $ [***] $ [***] Storage Demand Fee [***] $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper Producer shall pay Gatherer Seller each Month the following FeesFees for the volumes of Freshwater received by Producer at the Delivery Points: (i) a gathering fee of for Freshwater delivered to any CDP by Seller for use by Producer as Flushwater or for any other use other than as Fracwater, (A) for the Wild Basin Production Area shown on Exhibit A, $[***] per Barrel and (B) for all other areas, $[***] per Barrel of Freshwater (in each case, and as such fee may be increased in accordance with clause (bc) of this Exhibit IF, the “Gathering Flushwater Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) a stabilization and blending fee of for Freshwater delivered by Seller to any CDP for use by Producer as Fracwater (A) for the Wild Basin Production Area shown on Exhibit A, $[***] per Barrel unless otherwise agreed to by the Parties and (B) for all other areas, the fees shall be mutually agreed to by the Parties (in each case, and as such fees may be increased in accordance with clause (bc) of this Exhibit IF, the “Stabilization and Blending Fracwater Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement;). (iiib) Seller shall have the right to charge Producer the Flushwater Fee for each Barrel of actual leakage and pipeline loss incurred in providing the Services acting as a pumpover fee of $Reasonable and Prudent Operator and incremental line fill necessary to operate the Freshwater System acting as a Reasonable and Prudent Operator, such aggregate amount not to exceed [***] per Barrel (as may be increased in accordance with clause (b) percent of this Exhibit I, the “Pumpover Fee”) for the aggregate volumes of Crude Oil Flushwater delivered by Gatherer at the Delivery Points; and (iv) a storage fee of $[***] Points per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (b) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementMonth. (bc) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper : Oasis Petroleum Marketing LLC Contact: [***] Contact: [***] Phone: [***] Phone: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 5/9/2017 Contact: [***] Statement Date: 8/1/2017 5/1/2017 Phone: [***] E-mail: [***] Gathering Fee (on Receipt Point Volume) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] $ [***] Pumpover Fee (Delivery Point) [***] $ [***] $ [***] Storage Demand Fee [***] $ [***] $ [***] Total Fees $ [***] Contact: [***] Phone: [***] E-mail: [***] * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper shall pay Gatherer each Month the following Fees: (i) a gathering fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; (ii) a stabilization and blending fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Stabilization and Blending Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement; (iii) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; and (iv) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (b) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the Agreement. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC Contact: [***] ContactInvoice Date: [***] Phone: [***] PhoneService Date: Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] 0000 XXXXXX, XXXXX 0000 XXXXXXX, XX 00000 Area Service Date Description Delivery Point Volumes (barrels) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Red Bank Flushwater [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: Fracwater — — Hebron Flushwater [***] E-mail: [***] Gathering Fee (on Receipt Point Volume) [***] $ Fracwater — — Indian Hills South Flushwater [***] $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ Fracwater — TOTAL (all areas) Flushwater [***] $ [***] Pumpover Fee (Delivery Point) [***] $ Fracwater — Total Volumes [***] TOTAL DUE $ [***] Storage Demand Fee [***] $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] * Individual Receipt Delivery Point allocation to be provided on a Monthly basis. (a) Shipper Producer shall pay Gatherer Seller each Month the following FeesFees for the volumes of Freshwater received by Producer at the Delivery Points: (i) a gathering fee of for Freshwater delivered to any CDP by Seller for use by Producer as Flushwater or for any other use other than as Fracwater, $[***] per Barrel of Freshwater (as such fee may be increased in accordance with clause (bc) of this Exhibit IF, the “Gathering Flushwater Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) for Freshwater delivered by Seller to any CDP for use by Producer as Fracwater, the fees shall be mutually agreed to by the Parties (the “Fracwater Fee”). (b) Seller shall have the right to charge Producer the Flushwater Fee for each Barrel of actual leakage and pipeline loss incurred in providing the Services acting as a stabilization Reasonable and blending fee of $Prudent Operator and incremental line fill necessary to operate the Freshwater System acting as a Reasonable and Prudent Operator, such aggregate amount not to exceed [***] per Barrel (as may be increased in accordance with clause (b) percent of this Exhibit I, the “Stabilization and Blending Fee”) for the aggregate volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement; (iii) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil Flushwater delivered by Gatherer at the Delivery Points; and (iv) a storage fee of $[***] Points per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (b) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementMonth. (bc) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper : Oasis Petroleum Marketing LLC Contact: CTB Gross [***] Contact: [ ***] [***] Phone: [***] Phone: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity NGL Value $ — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Total Available [***] Regional Gas Lift — — Residue Value $ — Upstream Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: Fees $ [***] Statement Date: 8/1/2017 Phone: Net Plant Inlet [***] E[***] Net Amount Due $ [***] Product Theoretical Gallons Actual Gallons H2S CO2 N2 Methane Ethane [***] [***] Propane [***] [***] Iso-mail: Butane [***] [***] Normal Butane [***] [***] Iso-Gasoline [***] [***] Normal Gasoline [***] [***] C6+ [***] [***] Units Theoretical Residue Actual Residue MCF [***] [***] MMBTU [***] [***] Residue BTU Factor [***] Gathering Fee (on Receipt Point Volume) $ [***] [***] $ [***] Compression $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] Processing $ [***] Pumpover Fee (Delivery Point) [***] $ [***] Gas Lift $ [***] Storage Demand Fee [***] $ [***] Total Fees $ [***] $ Mole % GPM Theoretical Gallons Plant Recoveries Actual Gallons Shrink MMBtu Shrink Mcf Contract % Settled Gallons Net Price Liquid Value [***] Contact: [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] % [***] [***] [***] [***] % [***] $ — [***] [***] [***] [***] [***] [***] [***] $ — Theoretical Residue Actual Residue Fuel Lost & Unaccounted For Residue to WBI Gas Lift Offload - Xxxxxx Offload - Oneok Settled Residue Net Price Residue Value [***] [***] [***] [***] [***] [***] [***] [***] [***] [***] $ — [***] % [***] % Name [***] Phone: # [***] E-mail: Email [***] * Individual Receipt Product: Demethanized Mix – Y-Grade Date Originally Issued: 11/20/2012 Specification Number: BKNNGL-RF Revision Date: Revision Number: 0 Carbon Dioxide, Maximum GPA 2177 [***] [***] Methane, Maximum GPA 2177 [***] [***] Aromatics, Maximum GPA 2186 [***]LV% Olefins, Maximum GPA 2186 [***] [***] COS, by wt of C3 component ASTM D5623 or GPA 2199 [***] ppmw psig @ 100° F, Maximum GPA 2177, Appendix B [***] Copper Strip @ 100 F ASTM D 1838 [***] PPM by Weight, Maximum ASTM D 6667 [***] ppm Hydrogen Sulfide ASTM D 2420 [***] End Point allocation to be provided on a Monthly basis.@ 14.7 psia, °F, ASTM D 86 [***]° F Maximum [***] Saybolt Number, Minimum ASTM D 156 [***] [***] Free Water Inspection [***] @ [***]° F Product containing 65 mole % or more Ethane, °F, Maximum [***]°F Product containing less than 65 mole % Ethane, °F, Maximum [***]°F Notes: 1. [***] 2. [***] 3. [***] 4. [***] 5. [***] (a) Shipper shall pay Gatherer each Month the following Fees: (i) a gathering fee The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point (but excluding Gas received at the Receipt Point at the Stabilizer Interconnection), less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points); (ii) a stabilization The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point and blending fee compressed at each System Compressor Station, less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Stabilization and Blending Compression Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement); (iii) a pumpover fee The product of (A) the aggregate volume of Gas (in MCF) received by Gatherer from Shipper or for Shipper’s account at each Receipt Point, less the volume of Gas Lift Gas (in MCF) redelivered to Shipper at the Gas Lift Delivery Points during such Month and the volume of Gas (in Mcf) redelivered to or for Shipper’s account at an Upstream Delivery Point during such Month, multiplied by (B) $[***] per Barrel (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Pumpover Processing Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points); and (iv) a storage fee The product of (A) the aggregate volume of Gas (in MCF) delivered by Gatherer to Shipper or for Shipper’s account at each Gas Lift Delivery Point during such Month multiplied by (B) $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks (as may be increased in accordance with clause (bd) of this Exhibit IK, the “Storage Gas Lift Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, [***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the Agreement). (b) The Fees Parties agree and acknowledge that the initial design of the Facilities provides for the System Compressor Stations to utilize Gas-fueled compression equipment, rather than electric compression equipment, and that Shipper will be allocated its pro rata share of Fuel for the System Compressor Stations as provided in Section 6.3 and Section 6.4 of the Agreement. As a result, Shipper will not be initially responsible for payment or allocation of any electricity charges incurred by Gatherer. If Gatherer elects to utilize electric compression equipment to replace Gas-fueled compression equipment at the System Compressor Stations, Shipper shall escalate be responsible for its pro rata share of the electricity used at System Compressor Stations based on the total quantity of Shipper’s Gas (in MCF) delivered at the Receipt Points during such Month utilizing such electric compression during such Month as a fixed annual percentage of [***]% beginning January 1stthe total quantity of all Gas (in MCF) delivered into the Gathering System during such Month and utilizing such electric compression during such Month. The Parties acknowledge that Gatherer shall utilize some electric driven gas compression (i.e., [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing process refrigeration and/or overhead tower compression, motors) in the Contract Year beginning in [***]operation of the Processing Plant and Shipper shall not be responsible for such costs.

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC SW201703 Contact: [***] ContactInvoice Date: [***] 4/19/2017 Phone: [***] PhoneService Date: 3/1/2017 Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Area Service Date Description Volumes (BoW) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Red Bank 3/1/2017 Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Fee [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: Trucking Fee — [***] E-mail— Disposal Fee: Produced Water [***] [***] [***] Flowback Water — [***] — Excluded Water — [***] — Indian Hills South 3/1/2017 Gathering Fee (on Receipt Point Volume[***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — 3/1/2017 Trucking Fee True Up(1) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] $ [***] Pumpover Fee (Delivery Point) [***] $ [***] $ [***] Storage Demand — Indian Hills North 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — South Cottonwood 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — North Cottonwood 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — Hebron 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — East Xxxxx 3/1/2017 Gathering Fee [***] [***] [***] Disposal Fee: Produced Water [***] — Flowback Water [***] — Excluded Water [***] — Xxxx Xxxxx 3/1/2017 Gathering Fee [***] [***] [***] Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — Total $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] ] (1) Third party trucking is estimated if actual costs are not yet available and will be trued up to actual third party invoiced cost not to exceed the Gathering Fee. * Individual Receipt Point allocation to be provided on a Monthly basis.. Xxxxx 5602 12-13H Red Bank CRUSCH G 1-10-1B Hebron Xxxxxxx 29-30H Red Bank XXXX 42-4 Hebron Xxx Xxxxx 5604 43-23H Red Bank GRANLEY 14-10 Hebron Stim 5504 42-2H Red Bank GRANLEY 4-15YH Hebron Xxxxxxxxx R&R 5604 00-00X Xxx Xxxx XXXXXXX XXXXX 4-15 Hebron XXXXXXXX 00-00 Xxxxxx Xxxxx (Xxxxx) XXXXXXX XXXXX 4-15X Hebron BEHAN 2-29H Indian Hills (South) GRANLEY UNIT 1-15 Hebron XXXX 15-11H Indian Hills (South) XXXXXXXXX 16-34 Hebron XXXX FEDERAL 2-15H Indian Hills (South) LANDER 1-3 MC Hebron XXXXXX 2-5HR Indian Hills (South) XXXXXX FARMS 1-1 Hebron XXXXXX 2-6 Indian Hills (South) XXXXXX FARMS 1-2 Hebron XXXXXX 4-5 Indian Hills (South) XXXXXX RANCH 1-6HR Hebron XXXXXX 5-12BHR Indian Hills (South) XXXXXX 13-26 Hebron XXXXXX 5-5 Indian Hills (South) XXXXXX 13-26XH Hebron XXXXXX 15-35H Indian Hills (South) XXXXXX 4-36H Hebron XXXXXX 15-35HR Indian Hills (South) XXXXXXXX 1-11 Hebron XXXXXXXXXXX 33-33 1 Indian Hills (South) WIX 5-2 Hebron XXXXX X X 1-5 Indian Hills (South) Amazing Grace Federal 11-2H Xxxxxx XXX 13-8H Indian Hills (South) Xxxxxx Xxxxx Federal 19-18H Hebron XXXXXXX 10-1 Indian Hills (South) Xxxxxx 2759 13-15H Hebron XXXXXXX 1-11 HR Indian Hills (South) Jimbo Federal 2759 12-14B Hebron POWERS 1 Indian Hills (South) Justice Federal 2759 44-11T Hebron REHAB 4-33 Indian Hills (South) Xxxx Xxxxxx 00-0X Xxxxxx XXXXX XX XX F-1 Indian Hills (South) Mercy Federal 2759 44-11B Hebron XXXXXXXX 1-18H Indian Hills (South) Reveille Federal 2759 14-26H Hebron XXXXXXXX 16-34H Indian Hills (South) Ring Federal 2858 44-34H Hebron WILLOW 1-4 Indian Hills (South) Xxx 2858 00-00X Xxxxxx Xxxxxx 00-1HST Indian Hills (South) Xxxxxx 4-15H Hebron XXXXXXXXX XXXXX 00-0XX Xxxxxx Xxxxxx Xxxxxxx 00-00X Hebron XXXXX 1-9 Hebron Jimbo Federal 2759 44-11 5B Hebron XXXXX 9-9 Hebron Jimbo Federal 2759 44-11 6T Hebron BERWICK 4-2HE Hebron Xxxxx 11-20H Cottonwood BERWICK 4-2HN Hebron Xxxxx 5493 00-0X Xxxxx (West) CRUSCH 1-10 Hebron Xxxxxxxx 5493 00-0X Xxxxx (West) CRUSCH 2-3 Hebron Xxxxxx 5494 00-0X Xxxxx (West) CRUSCH 3-3 Hebron Xxxxxx 5493 44-7 T3 Xxxxx (West) CRUSCH B 0-00 Xxxxxx Xxxxxxxx 0000 34-13H Xxxxx (West) XXXXXX XXX 2-10 Hebron Lite 5393 00-00X Xxxxx (East) XXXXXX XXX 2-10X Hebron Travel 5393 14-12T Xxxxx (East) (a) Shipper Producer shall pay Gatherer each Month the following FeesFees for the volumes of Saltwater received by Gatherer at the Receipt Points: (i) a gathering fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) a stabilization and blending disposal fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Stabilization and Blending Disposal Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement;of: (iiiA) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; andProduced Water; (ivB) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks for Flowback Water; and (as may be increased in accordance with clause (bC) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, $[***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels per Barrel for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementExcluded Water. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC SW201703 Contact: [***] ContactInvoice Date: [***] 4/19/2017 Phone: [***] PhoneService Date: 3/1/2017 Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] Area Service Date Description Volumes (BoW) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Red Bank 3/1/2017 Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Fee [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: Trucking Fee — [***] E-mail— Disposal Fee: Produced Water [***] [***] [***] Flowback Water — [***] — Excluded Water — [***] — Indian Hills South 3/1/2017 Gathering Fee (on Receipt Point Volume[***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — 3/1/2017 Trucking Fee True Up(1) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) [***] $ [***] $ [***] Pumpover Fee (Delivery Point) [***] $ [***] $ [***] Storage Demand — Indian Hills North 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — South Cottonwood 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — North Cottonwood 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — Hebron 3/1/2017 Gathering Fee [***] [***] [***] Trucking Fee [***] — Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — East Xxxxx 3/1/2017 Gathering Fee [***] [***] [***] Disposal Fee: Produced Water [***] — Flowback Water [***] — Excluded Water [***] — Xxxx Xxxxx 3/1/2017 Gathering Fee [***] [***] [***] Disposal Fee: Produced Water [***] [***] [***] Flowback Water [***] — Excluded Water [***] — Total $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] ] (1) Third party trucking is estimated if actual costs are not yet available and will be trued up to actual third party invoiced cost not to exceed the Gathering Fee. * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper Producer shall pay Gatherer each Month the following FeesFees for the volumes of Saltwater received by Gatherer at the Receipt Points: (i) a gathering fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) a stabilization and blending disposal fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Stabilization and Blending Disposal Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement;of: (iiiA) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; andProduced Water; (ivB) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks for Flowback Water; and (as may be increased in accordance with clause (bC) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, $[***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) per Barrel of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementExcluded Water. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].

No Amendment to Agreement. This Memorandum is executed and recorded solely for the purpose of giving notice and shall not amend or modify the Agreement in any way. IN WITNESS WHEREOF, this Memorandum has been signed by or on behalf of each of the Parties as of the Effective Date. By: Name: Title: By: Name: Title: By: Name: Title: By: Name: Title: STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum North America LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Petroleum Marketing LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Services LLC, a Delaware limited liability company, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary STATE OF [ ] § § COUNTY OF [ ] § § The foregoing instrument was acknowledged before me on the day of , 2017, by [ ], [ ] of Oasis Midstream Partners LP, a Delaware limited partnership, on behalf of said entity. Notary Public in and for Printed or Typed Name of Notary Shipper OASIS MIDSTREAM SERVICES Invoice Number: Oasis Petroleum Marketing LLC Contact: [***] ContactInvoice Date: [***] Phone: [***] PhoneService Date: Email: [***] E-mail: [***] E-mail: [***] Date: 5/6/2017 Opening Inventory [***] Receipts Piped [***] Trucked [***] Subtotal Receipts [***] Deductions Crude Vapor Shrink [***] Condensate from Stabilizer [***] API Gravity — Pipeline Loss Allowance [***] Subtotal Deductions [***] Net Receipts [***] 0000 XXXXXX, SUITE 1500 HOUSTON, TX 77002 Area Receipt Point Volumes (BoW) Service Date Description Volumes (BoW) Rate Total Available [***] Deliveries OMS Wild Basin Pipeline [***] Ending Inventory [***] Gathering Line Fill [***] Tank Fill 1201 Tank [***] Tank Fill 601 Tank [***] (Build)/Pull for per day Jun-17 Fee [***] [***] bbl/day Shipper : Oasis Petroleum Marketing LLC Statement Date: 8/6/2017 Contact: [***] Statement Date: 8/1/2017 Phone: [***] E-mail: [***] Gathering Fee (on Receipt Point VolumeTrucking Fee(1) [***] $ [***] $ [***] Stabilization and Blending Fee (Receipt Pt) Disposal Fee: Produced Water [***] $ [***] $ [***] Pumpover Fee (Delivery Point) Flowback Water [***] $ [***] $ [***] Storage Demand Fee Excluded Water — [***] $ [***] $ [***] $ [***] Contact: [***] Phone: [***] E-mail: [***] — (1) Trucking fees are estimated if actual costs are not yet available and will be trued up to actual third party invoiced cost not to exceed the Gathering Fee. * Individual Receipt Point allocation to be provided on a Monthly basis. (a) Shipper Producer shall pay Gatherer each Month the following FeesFees for the volumes of Saltwater received by Gatherer at the Receipt Points: (i) a gathering fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Gathering Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points;); and (ii) a stabilization and blending disposal fee of $[***] per Barrel (as such fee may be increased in accordance with clause (b) of this Exhibit IG, the “Stabilization and Blending Disposal Fee”) for the volumes of Crude Oil received by Gatherer at the Receipt Points; provided that following December 31, [***], the Stabilization and Blending Fee shall only be payable by Shipper for the Receipt Point volumes of Crude Oil that receive stabilization services at the Central Processing Facility in accordance with Section 3.8 of the Agreement;of: (iiiA) a pumpover fee of $[***] per Barrel (as may be increased in accordance with clause (b) of this Exhibit I, the “Pumpover Fee”) for the volumes of Crude Oil delivered by Gatherer at the Delivery Points; andProduced Water; (ivB) a storage fee of $[***] per Barrel per Month of Tankage Shell Capacity of the Storage Tanks for Flowback Water; and (as may be increased in accordance with clause (bC) of this Exhibit I, the “Storage Fee”) and shall apply to Shipper for a period from the Effective Date to December 31, $[***] and thereafter if Shipper has not exercised its rights pursuant to Section 3.9(a) per Barrel of the Agreement to discontinue use of all Storage Tanks; provided that the Storage Fee shall not be payable on Tankage Shell Capacity greater than [***] Barrels for the Storage Tanks provided by Gatherer pursuant to Section 3.9(a) of the Agreement unless Shipper requests and receives additional storage capacity pursuant to Section 3.9(d) of the AgreementExcluded Water. (b) The Fees shall escalate at a fixed annual percentage of [***]% beginning January 1st, [***]. Such adjustment shall be made effective upon the first Day of each Contract Year commencing in the Contract Year beginning in [***].